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sinch-email-mailgun-optimize

Check email deliverability, blocklist status, and domain health via Mailgun Optimize API.

6|2|Updated Dec 11, 2025
Search Tags:#email deliverability#mailgun#domain health#reputation monitoring#blocklist check#inboxready
One-click install
npx skills add https://github.com/sinch/sinch-plugins --skill sinch-email-mailgun-optimize-sinch
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: sinch-email-mailgun-optimize
Source: https://github.com/sinch/sinch-plugins/tree/main/plugins/sinch-antigravity-plugin/skills/sinch-email-mailgun-optimize
Command: npx skills add https://github.com/sinch/sinch-plugins --skill sinch-email-mailgun-optimize-sinch

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Monitoring email deliverability and sender reputation requires manually logging into dashboards and running checks. This Skill queries the Mailgun Optimize (InboxReady) API directly so you can inspect monitored domains, blocklist status, and domain health from a single command. ## Core Features & Use Cases - List Monitored Domains: Retrieve all domains tracked by Mailgun Optimize (InboxReady) in your account. - Blocklist Checks: Verify whether a specific domain appears on email blocklists that hurt deliverability. - Domain Health Summaries: Check reputation and health status for a given sending domain. - Use Case: Before launching a campaign, run a blocklist check on mydomain.com to confirm your sending domain is clean and your inbox placement is not at risk. ## Quick Start Ask the assistant to check the blocklist status and domain health for mydomain.com using Mailgun Optimize.

Frequently Asked Questions about sinch-email-mailgun-optimize

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check if my domain is on an email blocklist?▼

Run the check-blocklist action with your domain, for example --action=check-blocklist --domain=mydomain.com. The Skill queries the Mailgun Optimize (InboxReady) API and returns the blocklist status for that domain.

How to monitor email deliverability with Mailgun Optimize?▼

Use the list-domains action to see all domains monitored by InboxReady, then run health checks on individual domains. This gives you reputation and deliverability status without opening the Mailgun dashboard.

What credentials does Mailgun Optimize API require?▼

It requires a MAILGUN_API_KEY environment variable used with HTTP Basic Auth in the form api:API_KEY against api.mailgun.net. If the key is missing, the Skill reports that Mailgun is not configured.

Why does the Mailgun Optimize check return a 401 error?▼

A 401 response means the API key is missing, invalid, or lacks access to InboxReady endpoints. Verify the MAILGUN_API_KEY value and confirm your Mailgun plan includes Optimize (InboxReady) access.

Can I check domain health without specifying a domain?▼

No, the blocklist and health actions require a --domain parameter. Without arguments, the Skill defaults to list-domains or asks what you want to check.

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